Article: Sapling diameter growth in gaps for two Nothofagus species in New Zealand.

Key words: coexistence; competition; disturbance; forest dynamics; New Zealand; Nothofagus; sapling growth; spatial patterns; tree growth; treefall gaps; trees.

INTRODUCTION

A forest disturbance regime dominated by small gaps, each formed by the death of one or a few individuals, allows several opportunities for species differences in autecology and life histories to be important (Veblen 1992). Gaps increase the environmental heterogeneity of forests in several ways. Light and soil parameters (moisture, nutrients) vary with gap size: the centers of large gaps are different from the centers of small gaps? which are different from the surrounding ...

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